Polycom VOIP Compatible Plantronics CS540 Wireless DECT Headset and Electronic Remote Answerer Interface Cable (EHS) Bundle - Compatible with.

Polycom VOIP Compatible - Features an Electronic Remote Answerer Interface Cable (EHS). Provides up to 8 hours of talk time for all-day use. Supports conference calls with up to four headsets on a single base for convenient collaboration. Offers a roaming range of up to 120m/400 ft for excellent mobility. Never miss a call with the included Electronic Remote Answerer. Answer calls using a 'one-touch' button on the headset. Compatible with Polycom Sound Point Phones: IP 335, IP 430, IP 450, IP 550, IP 560, IP 650, IP 670, VVX300, VVX500, VVX310, VVX600, VVX400, VVX1500, VVX410